[Subs] Custom app icons (#6758)

* custom icons

* rm default

* clouds.jpg

* use cross-platform fork

* minor fixes for android

* update dynamic icon lib

* gate app icon settings behind discover debug dids

* rename clouds

* Bop it

* Update default ios icon as well

* Remove old icon

* Update logo placement

* update to latest expo-dynamic-app-icon

* fix android icon sizes

---------

Co-authored-by: Eric Bailey <git@esb.lol>

src/alf/atoms.ts

@@ -1,7 +1,7 @@
 import {Platform, StyleProp, StyleSheet, ViewStyle} from 'react-native'
 
 import * as tokens from '#/alf/tokens'
-import {native, web} from '#/alf/util/platform'
+import {ios, native, web} from '#/alf/util/platform'
 
 export const atoms = {
   debug: {
@@ -312,6 +312,12 @@ export const atoms = {
   border_r: {
     borderRightWidth: StyleSheet.hairlineWidth,
   },
+  curve_circular: ios({
+    borderCurve: 'circular',
+  }),
+  curve_continuous: ios({
+    borderCurve: 'continuous',
+  }),
 
   /*
    * Shadow